Railway-car



No. 615,575. PatentedDe'c. 6, I898. E. 5., PRATT.

RAILWAY OAR.

(Application filed Aug. 25, 1898.)

(No Model.)

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PATENT ELIAS PRATT, OF NEW HAVEN, CONNECTICUT.

RAILWAY-CAR.

SPECIFICATION forming part of Letters Patent No. 615,575, dated December6, 1898. Application filed August 25, 1898. Serial No. 689,497- (Nomodel.)

To all whom it may concern:

Be it known that I, ELIAS E. PRATT, a citizen of the United States,residing at New Haven, Connecticut, have invented certain new and usefulImprovements in Railway- Cars, of which the following is aspecification.

My invention is an improvement upon that class of railway-cars of thegondola type, in which a sliding section is used in the bottom of thecar to discharge its contents.

In the accompanying drawings, Figure 1 shows a plan view of the bottomof a car with two openings. Fig. 2 is a partial section showing therack,pinion,and bearing-rollers. Fig. 3 is a detail View showing thepinion. Fig. 3 is an end view of Fig. 3. Fig. 4 shows one of thebearing-rollers in section. Fig. 5 shows in section and elevation thelever-wheel.

I have shown two openings covered by sliding sections; but it will beunderstood that I do not limit myself as to number or size. I

have deemed it sufficient to show the details relating to one slidingsection, as the other section is identical in construction andoperation.

The opening is made in the bottom of the car between two sills A A,cross-sills B strengthening the bottom at the ends of the openings. Thesliding section E is preferably of steel and is supported by bearing onantifrictionrollers G, supported by bolts or studs N passing through thesills and secured by bolts, as shown in Fig. 4. The sill is preferablylined by a metal plate a, and to prevent the clogging of the wheels G, Idish or concave these wheels, as at Z), Fig. 4, providing a collar 0,adapted to receive the pressure of a shoulder d on the stud N, the wheelcovering the collar and rotating freely on the end of the stud.

The steel slide has a rack H near each edge, and in order to givemovement to the slide I provide a shaft I with a combined pinion andantifriction-wheel, (shown in detail in Figs. 3 and 3*,) one of thesebeing located at the position of and engaging the racks of the slide.

The shaft I is rotated by a lever-wheel M. (Shown in detail in Fig. 5.)The wheel is secured to theshaftI and is made slightly dished, as shown.From its periphery lever-pockets extend inwardly, curving to the outerface of the wheel, soas to discharge any dust or dirt which wouldotherwise collect therein. The lever is inserted in these pockets andthe shaft thus easily turned to move the slide E back and forth.

The construction of the wheel G prevents any foreign matter from wedgingbetween it and the car, as the face of the wheel can be brought intoclose proximity to the adjacent part of the car.

The flange on the pinion prevents jamming of the gearing in case thebody of the car is sprung out of line, thus insuring uniform working ofthe gearing.

The racks have a side flange alongside the teeth to bear upon theantifriction-rollers.

What I claim is---- 4 1. In combination with a car-bottom, a slidingsection, a rack secured near each edge of the section, a series ofantifriction-wheels supporting the edges of the section and a combinedpinion and antifriction-wheel for each rack,a shaft supporting thepinions and means for rotating the shaft, substantially as described.

2. In combination with a car-bottom, a movable slide andantifriction-wheels supporting the slide, said wheels being dished orconcaved on the inner face, a stud supporting the same and a collarlocated in the dished part between the wheel and the adjacent part ofthe car, substantially as described.

3. In combination with a car-bottom, a movable slide having a rack, apinion engaging the rack, a shaft and a lever-wheel on the shaft, saidwheel having pockets in its periphery with open ends, substantially asdescribed.

4. In combination with a car-bottom, a movable slide having racks, aseries of antifriction-wheels supporting the slide a combined pinion andantifriction-wheel supporting and moving the slide and operating means,sub stantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

ELIAS E. PRATT.

Witnesses:

ELIAS E. PRATT, J12, SARAH V. PRATT.

